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Installing the ESP32 Board in Arduino IDE 2.0 (Windows, Mac OS X, Linux)

We will learn how to install the ESP32 board in Arduino IDE 2.0 whether you’re using Windows, Mac OS X or Linux. More ESP8266 projects you can find here.

Tag: Basics Project 140a Installing the ESP32 Board in Arduino IDE 2.0 (Windows, Mac OS X, Linux)

Project resources

  • Libraries used: None
  • Code: sketch

1. ESP32 development board with WiFi and Bluetooth and USB A / micro USB B cable 1 pc

ESP32 development board with WiFi and Bluetooth and USB A / micro USB
USB A / micro USB B cable

2.Arduino IDE 2.0 ( you can download it from here  )

Understanding the ESP32 Development board with WiFi and Bluetooth

You can read more about it here.

Understanding the Arduino IDE 2.0

The Arduino IDE is the well-known software we all use to program our boards. Its development started in 2005 based on the graphical interface of the Processing project and has never stopped since. During these years, countless hours of development by the Arduino team with the help of a vibrant community made the Arduino IDE the de facto standard for electronics prototyping. While the Arduino IDE provides a simple and clear interface that is ideal for the novice users, the more advanced users often report that the editing capabilities are a bit limited compared to modern editors.

On the 1st of March 2021, Arduino team has announced that the Arduino IDE 2.0 beta is available for downloading and its code repositories became open source. It carries a modern editor and provides a better overall user experience thanks to a responsive interface and faster compilation time. There are a lot of improvemets made, for example: while typing, the editor suggests the autocompletion of variables and functions according to the libraries you included; when right-clicking on a variable or a function, a contextual menu will provide navigation shortcuts to jump to the line (and file) where they are declared and much more. There’s another big feature in the new IDE: a live debugger that allows you to run your code interactively on a board and inspect its execution without writing tens of “Serial.println()” statements. Just fire the debug panel, set breakpoints where you want to pause the execution and inspect the content of variables. You can even change the content of variables on the fly and resume execution. The debugger supports all the Arduino boards based on the SAMD and Mbed platforms (MKR family, Nano 33 IoT, Nano 33 BLE, Portenta, Zero). Maintainers of Arduino cores for third-party boards can add support for debugging by adding the relevant configuration parameters; a technical guide for this is coming. You’ll need to connect a debugging probe such as the Segger J-link to the JTAG pins on the board and you’ll be ready to go. The new IDE is based on the Eclipse Theia framework, which is an open source project based on the same architecture as VS Code (language server protocol, extensions, debugger). The front-end is written in TypeScript, while most of the backend is written in Golang.

Signals and connections of the ESP32 Development board with WiFi and Bluetooth

You can find more information (datasheets, schematics, pins descriptions, functional desgn descriptions) about each board (made by Espresiff Systems) by pressing Getting started link close to each board here.

Let’s check our development board – ESP32 DEVKITV1 with ESP-WROOM-32 module from Espressif Systems:

ESP32 DEVKITV1
ESP32 DEVKITV1 pinout

Pinout diagram for the ESP Wroom 32 breakout:

ESP Wroom 32 breakout
  • ESP32-WROOM-32 – ESP32-WROOM-32 module soldered to the development board. Optionally ESP32-WROOM-32D, ESP32-WROOM-32U or ESP32-SOLO-1 module may be soldered instead of the ESP32-WROOM-32.
  • USB-UART Bridge – A single chip USB-UART bridge provides up to 3 Mbps transfers rates.
  • BOOT button – Download button: holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
  • EN button – Reset button: pressing this button resets the system.
  • Micro USB Port – USB interface. It functions as the power supply for the board and the communication interface between PC and the ESP module.
  • TX0, TX2 – transmit pin. GPIO pin
  • RX0, RX2  – receive pin.  GPIO pin
  • 3V3 (or 3V or 3.3V)- power supply pin (3-3.6V). 
  • GND – ground pin.
  • EN – Chip enable. Keep it on high (3.3V) for normal operation.
  • Vin – External power supply 5VDC.

Wiring

ESP32 Development board with WiFi and Bluetooth wiring

Step by Step instruction

Before starting this installation procedure, make sure you have the 2.0 beta version of the Arduino IDE installed in your computer. We use Arduino IDE 2.0 beta and Windows 7 64 bit OS.

1. Preparations

Go to the Arduino website and download the version for your operating system. It’s very easy to install it, just follow the installation instructions. If you have any trouble with installation, then go to the Arduino installation guide.

Arduino IDE 2.0 beta website

Windows: run the file downloaded and follow the instructions in the installation guide.

Mac OS X: copy the downloaded file into your application folder.

Linux: extract the downloaded file, and open the arduino-ide file that will launch the IDE.

Arduino IDE 2.0 beta installation

2. Installation of  ESP32 add-on

1.Open Arduino IDE 2.0 beta. 

2.Go to File -> Preferences.

Arduino IDE 2.0 beta

3.Type https://dl.espressif.com/dl/package_esp32_index.json to the Additional Board Manager URLs field. Then press OK button. If you already have the ESP8266 boards URL, you can separate the URLs with a comma as follows: https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json

Arduino IDE 2.0 beta

4.Open Boards manager. Go to Tools -> Board -> Boards Manager… or you can simply click on Boards Manager icon at the left-side corner.

Arduino IDE 2.0 beta
Arduino IDE 2.0 beta
Arduino IDE 2.0 beta

5.Look for esp or scroll down to the esp32 by Espressif Systems entry. Select the esp32 by Espressif Systems entry. When you click it an install option will appear. Press Install button to start installation.

Arduino IDE 2.0 beta

6.Congrats!!!You have installed it successfully. Let’s test it now.

Arduino IDE 2.0 beta

3. Testing installation

1.Plug the ESP32 development board to your PC and wait for the drivers to install (or install manually any that might be required).

2.Open Arduino IDE 2.0. 

3.In order to test the ESP32 add-on installation, we’ll upload a simple code that blinks the on-board LED (GPIO 2) – sketch.

4.Select COM port that the board is attached to (if you don’t see the COM Port in your Arduino IDE, you need to install the ESP32 CP210x USB to UART Bridge VCP Drivers)

Arduino IDE 2.0 beta

5.On the top drop-down menu, select the “unknown” board. A new window, as shown below, will open. Or go to Tools -> Board -> ESP32 Arduino -> and select your ESP32 board (We have the DOIT ESP32 DEVKIT V1) and click on OK button.

Arduino IDE 2.0 beta

6.Compile and upload the sketch to your ESP32 development board. Click on Upload button. If everything went as expected after a few seconds, the upload should be complete and you see a “Upload complete” message. (You need to hold the ESP32 on-board Boot button while uploading).

upload button
Output of Arduino IDE 2.0 beta

7.The ESP32 on-board LED should be blinking every second.

ESP32 with Arduino IDE 2.0 beta

8.Click on Serial Monitor icon to open the Serial Monitor tab.

Arduino IDE 2.0 beta
Serial Monitor of Arduino IDE 2.0 beta

9.That’s it! You’ve installed the ESP32 Boards successfully in the Arduino IDE 2.0.

Summary

We have learnt how to install the ESP32 board in Arduino IDE 2.0 whether you’re using Windows, Mac OS X or Linux.

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